package edu.hubu.config;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.StringRedisSerializer;

import java.time.Duration;


@Configuration
@EnableCaching
public class CacheConfig extends CachingConfigurerSupport {

//    @Primary
//    @Bean
//    public RedisCacheConfiguration redisCacheConfiguration() {
////        JdkSerializationRedisSerializer jdkSerializationRedisSerializer=new JdkSerializationRedisSerializer();
//        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
//        ObjectMapper om = new ObjectMapper();
//        om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
//        om.activateDefaultTyping(LaissezFaireSubTypeValidator.instance ,
//                ObjectMapper.DefaultTyping.NON_FINAL, JsonTypeInfo.As.PROPERTY);
//        jackson2JsonRedisSerializer.setObjectMapper(om);
//        RedisSerializationContext.SerializationPair<Object> pair = RedisSerializationContext.SerializationPair
//                .fromSerializer(jackson2JsonRedisSerializer);
//        RedisCacheConfiguration redisCacheConfiguration = RedisCacheConfiguration.defaultCacheConfig()
//                .entryTtl(Duration.ofSeconds(259200))
//                //缓存失效时间为3天
//                .serializeValuesWith(pair);
//        return redisCacheConfiguration;
//    }
//
//    @Bean
//    public RedisCacheManager cacheManager(RedisConnectionFactory connectionFactory) {
//        //初始化一个RedisCacheWriter
//        RedisCacheWriter redisCacheWriter = RedisCacheWriter.nonLockingRedisCacheWriter(connectionFactory);
//        //初始化RedisCacheManager
//        RedisCacheManager cacheManager = new RedisCacheManager(redisCacheWriter, redisCacheConfiguration());
//        return cacheManager;
//    }
    @Bean
    public CacheManager cacheManager(RedisTemplate<String, Object> template) {
        RedisCacheConfiguration defaultCacheConfiguration =
                RedisCacheConfiguration
                        .defaultCacheConfig()
                        // 设置key为String
                        .serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(template.getStringSerializer()))
                        // 设置value 为自动转Json的Object
                        .serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(template.getValueSerializer()))
                        // 不缓存null
                        .disableCachingNullValues()
                        // 缓存数据保存1小时
                        .entryTtl(Duration.ofHours(1));
        RedisCacheManager redisCacheManager =
                RedisCacheManager.RedisCacheManagerBuilder
                        // Redis 连接工厂
                        .fromConnectionFactory(template.getConnectionFactory())
                        // 缓存配置
                        .cacheDefaults(defaultCacheConfiguration)
                        // 配置同步修改或删除 put/evict
                        .transactionAware()
                        .build();
        return redisCacheManager;
    }
//    /**
//     * 设置 redisTemplate 的序列化设置
//     * @param
//     * @return
//     */
//    @Bean("redisTemplate")
//    public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) {
//        // 1.创建 redisTemplate 模版
//        RedisTemplate<String, Object> template = new RedisTemplate<>();
//        // 2.关联 redisConnectionFactory
//        template.setConnectionFactory(redisConnectionFactory);
//        // 3.创建 序列化类
//        //JdkSerializationRedisSerializer serializer = new JdkSerializationRedisSerializer();
//        Jackson2JsonRedisSerializer serializer = new Jackson2JsonRedisSerializer(Object.class);
//        // 6.序列化类，对象映射设置
//        template.setDefaultSerializer(serializer);
//        ObjectMapper objectMapper=new ObjectMapper();
//        objectMapper.setVisibility(PropertyAccessor.ALL,JsonAutoDetect.Visibility.ANY);
//        objectMapper.activateDefaultTyping(LaissezFaireSubTypeValidator.instance ,
//               ObjectMapper.DefaultTyping.NON_FINAL, JsonTypeInfo.As.PROPERTY);
//        serializer.setObjectMapper(objectMapper);
//        // 7.设置 value 的转化格式和 key 的转化格式
//        template.setValueSerializer(serializer);
//        //设置序列化和反序列化key值
//        template.setKeySerializer(new StringRedisSerializer());
//        //设置hash key value序列化
//        template.setHashKeySerializer(new StringRedisSerializer());
//        template.setHashValueSerializer(serializer);
//        template.afterPropertiesSet();
//        return template;
//    }
    @Bean(name = "redisTemplate")
    public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory factory) {
        // 创建RedisTemplate<String, Object>对象
        RedisTemplate<String, Object> template = new RedisTemplate<>();
        // 配置连接工厂
        template.setConnectionFactory(factory);
        // 定义Jackson2JsonRedisSerializer序列化对象
        Jackson2JsonRedisSerializer<Object> jacksonSeial = new Jackson2JsonRedisSerializer<>(Object.class);
        ObjectMapper om = new ObjectMapper();
        // 指定要序列化的域，field,get和set,以及修饰符范围，ANY是都有包括private和public
        om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        // 指定序列化输入的类型，类必须是非final修饰的，final修饰的类，比如String,Integer等会报异常
        om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        jacksonSeial.setObjectMapper(om);
        StringRedisSerializer stringSerial = new StringRedisSerializer();
        // redis key 序列化方式使用stringSerial
        template.setKeySerializer(stringSerial);
        // redis value 序列化方式使用jackson
        template.setValueSerializer(stringSerial);
        // redis hash key 序列化方式使用stringSerial
        template.setHashKeySerializer(stringSerial);
        // redis hash value 序列化方式使用jackson
        template.setHashValueSerializer(jacksonSeial);
        template.afterPropertiesSet();
        return template;
    }
}
